Smart city is a human-centered and people-oriented development concept,which is promoted by the new generation of information technology to improve urban management level and realize intelligent services through the adoption of advanced information technology and concepts,with the ultimate goal of building a new type of smart city that is"resource-saving,environment-friendly and livable life".At present,the construction of smart cities in China is faced with problems such as low technical level,lack of standard system and supervision mechanism.Smart city construction is a complex systematic project,which requires cross-border coordination,comprehensive integration,overall coordination and sustainable development.China has carried out a lot of research work on the construction of smart cities,but in general,it is still in the research stage.With the development of the Internet and other new generation of information technology and the gradual establishment and improvement of the relevant standard system,the construction of a new type of smart city provides the basic conditions.In order to achieve a new breakthrough in the new type of smart city,China must adhere to the combination of independent innovation and open cooperation.
In the research on occupational living spaces,there are few specific studies on the job-housing relationship of different income groups.The purpose of this study is to explore the characteristics of the job-housing relationship of different income groups in Liangjiang New District through the analysis and research of multi-source data,and to deeply analyze the reasons for the formation of this job-housing relationship.Taking Anjuke's community prices as the basis for the division of different income groups,combined with the analysis of mobile phone signaling data,it reveals the living space,employment space,and job-housing relationship of different income groups.The study found that high-income groups are more concentrated in areas with supporting public services,a good environment,and convenient commuting;middle-income groups are more concentrated in areas with moderate housing prices,convenient commuting,and complete public services;Low-income people are concentrated in the old and small areas with lower housing prices.This study deeply analyzes the job-housing spatial portraits of the three types of income groups,and provides some support for optimizing the urban spatial layout,improving living and working conditions,and improving the quality of life and social equity.
As the fine definition of ancient building modeling generated by traditional methods is low,a precision generation method of ancient building modeling based on precision measurement is proposed.The fine measurement is used to measure the target ancient buildings,collect the fine measurement data,improve the precision of the fine measurement through format conversion,redundancy removal,noise reduction and registration processing,import the fine measurement into the fine production software,and generate the fine modeling of ancient buildings through 3D model establishment and background addition.The experiment shows that the refined definition of the ancient building modeling generated by the design method is higher than that of the traditional method,and the design method has better feasibility and reliability.
The paper studies the use of BIM technology to optimize cost control and schedule management of construction projects.Based on a correct understanding of the current management situation,it analyzes the key application points of BIM technology in the actual construction process,effectively breaks through the bottleneck of cost control and schedule management,and provides new ideas for the healthy and sustainable development of construction enterprises.
In the design process of prefabricated buildings,various factors need to be comprehensively considered.BIM technology provides good technical support for prefabricated building design.This article takes the Artificial Intelligence Industrial Park in Nanjing Pukou High-tech Zone as an example to achieve the integration of prefabricated building design,production,and assembly through the application of BIM technology,providing reference for the entire process of prefabricated building design.
The collision between the Beijing-Hangzhou Grand Canal and Tianjin produced water transport,immigration and folk culture,which affected urban transportation,labor and tourism economy.It has driven the development of the city and caused the transformation of the city.With the rapid economic development,there are also problems such as inadequate management,environmental pollution and cultural forgetting.This paper studies and analyzes the development of the Tianjin section of the Beijing-Hangzhou Grand Canal,tries to discuss the historical development,cultural origin and transformation factors of urban spatial structure,deeply analyzes the influence of the canal on Tianjin,and provide improvement measures for the problems:To improve relevant management departments,promote green production and life,strengthen the output of cultural industries,and add new ideas for effectively ensuring the development of urban canal culture and subsequent redevelopment and utilization.
In the context of the establishment and implementation of the national spatial planning system,regulatory detailed planning serves as the legal basis for carrying out national spatial development and protection activities and implementing national spatial use control,playing a connecting role in the transmission of the preceding and following.Based on the compilation of the"Detailed Regulatory Planning(Revision)for the Chengbei District of Nan'an City",starting from the challenges faced by the compilation of regulatory planning,this paper proposes a new path for the revision and compilation of regulatory planning in the Chengbei District,including docking with the technical standard system of national spatial planning,shaping urban health ventilation corridors of the city,and transforming the value orientation of regulatory planning.
Based on the preliminary planning research of rural highway project under the premise of road network optimization,this paper first expounds the significance and planning points of rural highway project planning,analyzes the existing problems of rural highway network,and explains them from the perspectives of network hierarchy structure,rural highway intersection capacity and rural highway network density.At the end of the article,from the perspectives of optimizing and improving the main design of rural roads,focusing on strengthening the construction of rural roads,improving the fund supervision of rural road construction projects,improving the bidding behavior of rural roads,scientifically designing the quality standards of rural road management,and ensuring the advantages of rural road network design,the countermeasures for the planning of rural road construction in the early stage are summarized.
Due to the low resolution and easy error of traditional large area surveying and mapping technology of topographic map,the large area 1:2000 topographic surveying and mapping technology based on ground 3D laser scanning is studied.The distance between the target point and the scanning equipment is estimated by the laser pulse and time difference,and the three-dimensional coordinates of the target point are calculated by the observation values from different angles to complete the establishment of the ground three-dimensional laser scanning system model;By designing the scanning scheme of large area topographic map,point cloud data and panoramic photos are collected,and the scanning track and mapping LAS file are calculated to complete data preprocessing;By adjusting the size of point cloud and surveying and mapping mode,the surveying and mapping of large-scale 1:2000 topographic map is completed.The test results show that the average accuracy of the surveying and mapping results of large area topographic map is 92.75%after using the ground 3D laser scanning technology.The optimized technology can make the large area topographic map more accurate.
The integration of the green construction concept by engineers and technicians in the process of housing construction can effectively prevent the problem of leakage in housing construction and enhance the quality and effectiveness of housing construction technology.This paper firstly introduces the concept of green construction,and on this basis,elaborates the necessity of applying the green construction concept in the construction of housing projects.And based on this study,the application of the green construction concept in the seepage prevention construction of housing engineering is elaborated,which includes the description of the leakage prevention technology of thermal insulation wall,roof leakage prevention technology,door and window leakage prevention and energy saving application,basement leakage prevention construction and the leakage prevention treatment of kitchen and bathroom locations,with a view to providing valuable green construction concept and construction technical experience for relevant engineering and technical personnel to study housing leakage prevention technology in the future.
With the method of literature research and case analysis,the evaluation index system is established from the cost risk analysis of prefabricated buildings;The whole life cycle cost of the project is considered from four aspects:technical risk,economic risk,environmental risk and management risk;Data are obtained based on expert questionnaire and Delphi method;By using the fuzzy comprehensive evaluation method,an example analysis is conducted on the establishment of a cost risk evaluation index system for prefabricated buildings.By constructing the fuzzy comprehensive evaluation index system and using the fuzzy comprehensive evaluation method for example analysis,the feasibility of the method is verified,and the risk level of project cost can be ranked and countermeasures can be made.
Under the"double reduction"policy,children,as a vulnerable group in the city,has gradually increased their demand for outdoor activities.Community life circle is the basic unit of children's life,and community parks have become the most accessible outdoor space for children.Intelligent systems are introduced in community parks with micro-renewal to make children's outdoor activity spaces more intelligent and safe.This paper uses on-site survey,interview method and questionnaire method to sort out the current situation of the park and puts forward child-friendly intelligent strategies.
Based on the actual project,this paper explores and analyzes the construction scheme of the smart factory of steel structure,and puts forward the architecture model of"1+N"system,that is,using one IOC platform as the data base and building N intelligent applications according to the actual demand,so as to build the intelligent brain of factory operation and build the digital and lean management system of the whole life cycle,thus realizing the intelligent management and intelligent production of steel structure production and research base.
On the basis of studying the theory of smart tourism,this paper analyzes the necessity and feasibility of smart tourism development of Yanjiaqiao traditional village in Wuxi,proposes strategies for village protection and smart tourism development from three aspects of smart tourism service,smart tourism management and smart tourism marketing,realizes the interaction between online tourism service system and offline tourism experience,meets the diversified needs of tourists,scenic spot managers and indigenous people,and realizes sustainable rural development.
The article takes the design of air conditioning systems in intelligent buildings as the starting point,and combines practical engineering cases to start from the design parameters of air conditioning systems,selection of cold and heat sources,setting of water systems,air flow organization and other aspects.It focuses on introducing energy-saving optimization measures for HVAC design in intelligent buildings.Through the design concept of HVAC energy saving technology combined with intelligent technology,it provides technical support for the realization of green building.
Disaster risk assessment,as a fundamental prerequisite for the overall planning of national land and space,currently lacks guidance on assessment ideas and methods in existing standards and guidelines.However,traditional assessment methods have problems such as insufficient graphical representation,weak systematicity,and insufficient comprehensive analysis.Through literature review and research on relevant industry standards,this article explores a real-time operational work path for different regional scales,combining matrix analysis,PSR model method,and spatial superposition analysis method,in order to evaluate disaster risk levels,identify disaster risk areas,and support the planning and formulation of national spatial planning.
This paper analyzes the scale control of drainage design and the energy-saving design scheme of water supply and drainage engineering in municipal water supply and drainage works,with special attention to the future sustainability and energy efficiency.Based on the methods of the literature review,the factors that may influence the water supply and drainage engineering are analyzed,such as rainfall and runoff characteristics,terrain and geological conditions,road use type and traffic flow,urban development planning and urban landscape requirements.This paper also proposes the water supply and drainage engineering design scheme based on considering influence factors,namely,through zoning design and phased implementation,the system can meet the drainage needs of different regions and optimize according to the future development plan;The comprehensive use of rainwater garden,rainwater collection system and other measures can reduce the energy consumption and environmental load of the system;The introduction of new technologies and innovative schemes,such as intelligent monitoring and control technology,renewable energy utilization and others can improve the efficiency and sustainability of the system.
In recent years,BIM technology has been widely used in construction enterprises and construction units,while assembly-type architecture has started to become popular.With its characteristics of fast,energy-saving,environmental protection and standardized design,it is bound to become the main development trend of the construction industry in the future.The paper introduces BIM technology into the design of assembly-type buildings,focuses on structure design,drawing,engineering quantity statistics,deepening design,seismic design and other professional design content,and lays a solid foundation for the development of assembly-type buildings.
Taking the East Ring tunnel project of Guangzhou-Foshan Line of intercity rail transit in the East Pearl River Delta as the engineering research background,this paper analyzes the influence of the East Ring tunnel project on the structure of Taihe Tunnel of freight car outer winding by combining the method of numerical simulation and theoretical analysis.By analyzing the influence of shield tunneling and support on the safety of railway tunnel structure,it is concluded that overlapping sections have mutual influence in the construction process of overlapping tunnel,which is manifested as the settlement of funnel section in the cross section of existing tunnels.The study of this paper has a certain guiding significance for the subsequent study of overlapping tunnel construction.
